Once anything is cooked, frozen then de-frosted should never ever be frozen again but be discarded.
As Phil suggests, make your base sauce in batches, pre-cook your chicken/meat and freeze. I would marinate prawns and keep them in small batches in a fridge ready for use on that day only then prepare fresh that night or early the next day for that day.
Any base sauce that has been de-frosted and not used can of course be covered and left in the fridge for up to 2 days before being discarded.
If Phil is correct and you are in Thailand, just make sure your fridge is kept in the constant 1-4 degrees, which stops bacteria multiplying, anything above that 5 - 63 degrees (temperature danger zone) will allow bacteria to multiply in a short space of time.
All the best with your new venture and keep us posted on how you get along
